/**
 * This file is part of AppStoreBot.
 *
 *  AppStoreBot is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  AppStoreBot is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with AppStoreBot.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
package lu.pragmaconsult.appstorebot.itunes;

import static lu.pragmaconsult.appstorebot.itunes.Constants.AJAX_NAME;
import static lu.pragmaconsult.appstorebot.itunes.Constants.DEFAULT_VENDOR_PAGE;
import static lu.pragmaconsult.appstorebot.itunes.Constants.REPORTING_HOST;
import static lu.pragmaconsult.appstorebot.itunes.Constants.VIEW_STATE;

import java.io.IOException;

import lu.pragmaconsult.appstorebot.BotContext;

import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpMethod;
import org.apache.commons.httpclient.methods.GetMethod;

/**
 * TODO: Type comment
 * @author Wilfried Vandenberghe (wilfried.vandenberghe at pragmaconsult.lu)
 */
class SalesAndTrendBotState extends AbstractBotState {
	
	@Override
	protected HttpMethod createHttpMethod(BotContext context, HttpClient httpClient) {
		httpClient.getHostConfiguration().setHost(REPORTING_HOST, 443, "https");
		
		return new GetMethod();
	}
	
	@Override
	protected void processResponseBody(BotContext context, HttpMethod method) {
		try {
			HtmlParser parser = new HtmlParser(method.getResponseBodyAsStream());
			
			// get the view state value
			context.setContextAttribute(VIEW_STATE, parser.getState());
			
			// get the defaultVendorPage and the ajax name
			String id = parser.getVendorPageId();
			String[] tokens = id.split(":");
			context.setContextAttribute(DEFAULT_VENDOR_PAGE, tokens[1]);
			context.setContextAttribute(AJAX_NAME, tokens[1].replaceFirst("_2", "_0"));

		} catch (IOException e) {
			throw new IllegalStateException(e);
		} catch (Exception e) {
			throw new IllegalStateException(e);
		}
	}
	
	@Override
	protected BotState getNextState() {
		return new SalesAndTrendPageBotState();
	}
}
